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Subject: Re: Rockbox in FLASH (I'm serious)
From: for_spam_at_gmx.de
Date: 2003-05-12


yes - I would like that!
(bringing thread at
http://rockbox.haxx.se/mail/archive/rockbox-archive-2003-01/0731.shtml back
into discussion -it doesnt discuss what is mentioned here - but it is about
another "flash approach")
BTW: did anybody run an archos with a Compact-FlashCard yet?
Since CF in "True IDE mode" should behave like an ordinary HDD - I think
this IS possible. unfortunately, I still have no adapter and no "courage" to try
this ;)
regards
roland

> Hello Rockboxers,
>
> I'm tired of the boot time (18 seconds for me, 'til the music plays) and
> like to think aloud whether it's feasible to build Rockbox for programming
> it
> into the Flash.
>
> There's 2 issues, first the hardware:
> >From the schematics, the recorder has a Flash type which needs a high
> programming voltage not available nor connectable in the box, meaning it
> can't
> program itself. I don't know if Archos really used this chip for all the
> manufacturing, or if there are boxes in the field with newer chips.
> Anyway,
> it could
> be replaced by a 3V programmable type, e.g. AM29LV040 which has twice the
> size. The highest address pin can then be used to select between the
> original
> Archos firmware for emergencies and a ROM version of Rockbox to mess
> around
> with. (Has anybody dumped the ROM content?)
>
> Then the software:
> I don't know if there's any initializations/functions from the original
> firmware on which Rockbox relies. For this the startup code needs
> additions,
> besides changes for the Flash environment. I guess the original firmware
> also
> copies itself to the DRAM for speed reasons? (The DRAM is 16 bits wide and
> potentially faster than the 8 bit Flash.) If not, we could gain some
> memory
> by
> running ROM-based.
>
> Who's with me on this thinking?
> Jörg
>
>
> --
> +++ GMX - Mail, Messaging & more http://www.gmx.net +++
> Bitte lächeln! Fotogalerie online mit GMX ohne eigene Homepage!
>

-- 
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